Abstract: A radiation shielding integrated circuit device comprising a x-ray shielding layer for shielding an electronic circuit device from receiving an amount of x-rays greater than the total dose tolerance of the electronic circuit device; a base coupled to the x-ray shielding layer; a radiation shielding top coupled to the base; a radiation shielding bottom coupled to the base; and the electronic circuit device coupled to the x-ray shielding layer; wherein the electronic circuit device is shielded from receiving an amount of radiation greater than a total dose tolerance of the electronic circuit device.

Abstract: A radiation shielding integrated circuit device comprising a x-ray shielding layer for shielding an electronic circuit device from receiving an amount of x-rays greater than the total dose tolerance of the electronic circuit device; a base coupled to the x-ray shielding layer; a radiation shielding top coupled to the base; a radiation shielding bottom coupled to the base; and the electronic circuit device coupled to the x-ray shielding layer; wherein the electronic circuit device is shielded from receiving an amount of radiation greater than a total dose tolerance of the electronic circuit device.

Abstract: A nuclear event detector for sensing the occurrence of an ionizing radiation pulse and providing switched outputs in response to the sensing. The detector includes an ionizing radiation sensor which provides a sensor output signal when an ionizing radiation pulse incident thereon exceeds a predetermined threshold level. The detector further includes a pulse timer circuit which is responsive to the sensor output signal for providing a timing signal pulse of a predetermined duration. The detector also includes a latch circuit triggered by the output of the timer circuit which provides a flag signal indicating that an ionizing radiation pulse has been sensed. The latch circuit, timer circuit and sensor are part of a hybrid microcircuit and are disposed in a sealed enclosure with connectors extending from inside the enclosure to outside the enclosure. A first external connector is adapted for connection to a first electrical component for setting the threshold level.